(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

Base Information

Chemical Name:(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine
CAS No.:189700-17-2
Molecular Formula:C₃₁H₃₆N₂O₅
Molecular Weight:516.637
Hs Code.:

Synonyms:(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

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Chemical Property of (2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

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Technology Process of (2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

There total 5 articles about (2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine which guide to synthetic route it. The literature collected by LookChem mainly comes from the sharing of users and the free literature resources found by Internet computing technology. We keep the original model of the professional version of literature to make it easier and faster for users to retrieve and use. At the same time, we analyze and calculate the most feasible synthesis route with the highest yield for your reference as below:

synthetic route:

Reference yield: 92.0%

: 109838-85-9
(2R)-2,5-dihydro-2-isopropyl-3,6-dimethoxypyrazine

: 189700-16-1
2,3-Bis-benzyloxy-1-chloromethyl-4-methoxy-benzene

: 189700-17-2
(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

Guidance literature:: With n-butyllithium; In tetrahydrofuran; at -78 ℃;
DOI:10.1016/S0040-4039(97)00467-X

Reference yield:

: 4055-69-0
2,3-dihydroxy-4-methoxybenzaldehyde

: 189700-17-2
(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

Guidance literature:: Multi-step reaction with 4 steps

1: 89 percent / K₂CO₃ / dimethylformamide / Ambient temperature

2: 99 percent / NaBH₄ / methanol / Ambient temperature

3: SOCl₂ / CH₂Cl₂ / Ambient temperature

4: 92 percent / nBuLi / tetrahydrofuran / -78 °C

With sodium tetrahydroborate; n-butyllithium; thionyl chloride; potassium carbonate; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0040-4039(97)00467-X

Reference yield:

: 100-39-0
benzyl bromide

: 189700-17-2
(2S,5R)-2-(2,3-Bis-benzyloxy-4-methoxy-benzyl)-5-isopropyl-3,6-dimethoxy-2,5-dihydro-pyrazine

Guidance literature:: Multi-step reaction with 4 steps

1: 89 percent / K₂CO₃ / dimethylformamide / Ambient temperature

2: 99 percent / NaBH₄ / methanol / Ambient temperature

3: SOCl₂ / CH₂Cl₂ / Ambient temperature

4: 92 percent / nBuLi / tetrahydrofuran / -78 °C

With sodium tetrahydroborate; n-butyllithium; thionyl chloride; potassium carbonate; In tetrahydrofuran; methanol; dichloromethane; N,N-dimethyl-formamide;
DOI:10.1016/S0040-4039(97)00467-X